Spark arrester and consumer.



Patented Dec. 25, I900.

No. 664,78l.

J. B. RIGHTER.

SPARK ABBESTER AND CONSUMER.

(Application filed Apr. 17, 1900.)

(No Model.)

Wih cssas ze m: Nonaus miss so. Pumu m, wunma'rom n c.

NrrED STATES PATENT OFFICE.

JAMES B. RIGHTER, OF ELROY, WISCONSIN.

SPARK ARRESTER AND CONSUMER.

SPECIFICATION forming part of Letters Patent No. 664,781, dated. December 25, 1900.

Application filed April 17, 1900. Serial No. 13,261. (No model.)

To all whom, it may concern:

Be it known that I, JAMES B. RIGHTER, a citizen of the United States, residing at Elroy, in the county of Juneau and State of Wiscousin, have invented a new and useful Spark Arrester and Consumer, of which the following is a specification.

The invention relates to improvements in spark arresters and consumers.

The object of the present invention is to improve the construction of spark-arresters and to provide a simple, inexpensive, and efficient one adapted to be readily applied to a locomotive without interfering with the draft and capable of preventing the sparks and cinders from being thrown out of the smoke-stack and adapted to return the cinders and extinguished sparks to the furnace or fire-box, together with the heavy gases resulting from combustion, whereby the fuel will be more completely consumed and combustion rendered more complete, thereby obtaining a maximum amount of heat from a given quantity of fuel and reducing the consumption of the latter to a minimum.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a side elevation of a portion of a locomotive provided with a spark arrester and consumer constructed in accordance with this invention. Fig. 2 is a transverse sectional view of the same.

Like numerals of reference designate corresponding parts in both figures of the drawings.

1 designates a downwardly-tapered casing surrounding the short stack 2 of a locomotive-boiler 3 and extending upward above the said stack and provided with a curved substantially concave-convex top 4:, having a central opening for the escape of smoke and provided with an upwardly-extending collar or flange 5, surrounding the central opening 6. The collar or ring 5, which forms a projecting upwardly-extending flange, has its upper and lower edges 7 and 8 bent outwardly to form annular flanges, the lower one, 8, of which is riveted or otherwise secured to the upper face of the concavo-convex top 4, adjacent to the central opening 6. The upper outturned edge 7'is perforated for the reception of vertical rods 9, which also extend through the lower outturned edges 8 and the adjacent portions of the top 4 and depend from the latter to form a support for an inverted conical deflector 10, located directly above and centrally of the short stack 2 and adapted to spread the smoke and cinders equally. The upper edge of the conical deflectoris curved outward to provide an arched flange or deflecting portion 11, adapted to throw the sparks downward and cause the same to fall into the annular space surrounding the shortstack 2. The rods, which are suitably secured to the upper portion of the conical deflector, are vertically adjustable to enable the said deflector to be properly positioned with relation to the short stack, and their upper portions are preferably threaded for the reception of nuts 12, by means of which the rods may be adjusted.

The tapering casing is provided at opposite sides with depending substantially triangular hopper extensions 13, adapted to direct the sparks and cinders which are thrown downward by the conical deflector into pipes or conductors 14, which extend back into the firebox of the locomotive to enable the sparks and cinders to be completely consumed, together with the heavy gases. The sparks and cinders are directed into the depending triangular hopper extensions 13 by means of approximately inverted-V-shaped partitions 1", designed to be arranged at the front and back of the casing in the position illustrated in dotted lines in Fig. 2 of the accompanying drawings. The inverted-V-shaped partitions, which are located between the short stack 2 and the casing 1, terminate short of the top of the former and are composed of two inclined sides. By this construction sparks and cinders are prevented from accumulating in the casing at the front and back thereof, and these oppositely-inclined partitions may be mounted between the casing and the short stack in any suitable manner. In order to convey the sparks and cinders and the heavy gases through the pipes or conduits 14 from the casing to the fire-box, the said casing is provided at its front portion with an air tube or pipe 16, provided at its upper end with a flaring portion or funnel 17 and depending therefrom to a point below the upper edge of the short stack 2. the locomotive causes a draft of air to be forced downward through the air-pipes, and this draft of air carries the sparks and cinders and the heavy gases rearward to the fire-box and mixes with the heavy gases and is also heated in its passage through the casing, so that it does not operate to lower the temperature of the fire-box. By mixing air with the heavy gases in this manner the combustion within the fire-box is rendered more complete ap d a maximum amount of heat is obtained from a given quantity of fuel, thereby reducing the consumption of the latter to a minimum.

It will be seen that the spark arrester and consumer is simple and comparatively inexpensive in construction and adapted to be readily applied to a locomotive Without interfering with the draft of the same, that it effectually prevents sparks from being thrown out of the smoke-stack and the consequent liability of burning property, and that the sparks and cinders, together with the heavy gases, will be carried rearward to the fire-box. and be reburned and completely consumed. It will also be apparent that in reburning the cinders and heavy gases and in mixing the same With air the combustion within the firepot is rendered more complete and that the consumption of fuel is reduced to a minimum.

The forward movement. of

What isclaimed ising a casing designed to be arranged around the short stack of a boiler, pipes or conduits extending from opposite sides of the casing to the fire-box, a deflector designed to be arranged over the short stack, and an approxi 4o mately vertical air-tube located within the front portion of the casing and extending at its upper end through the same and depending below the top of the short stack, substantially as described.

2. In a device of the class described, the

combination of a boiler having a short stack, 7 a casing surrounding-the short stack and pro- 7 vided at opposite sides with tapered portions:

or hoppers, pipes or conduits extending from 50 the tapered portions or hoppers to the firebox, a deflector arranged within the casing and located above the short stack, and the air-tube arranged at the front of the casing and depending from the top thereof to a point 55 below the top of the short stack, said air-tube being provided at its upper end with a funnel extending through the casing, substantially as and for the purpose described.

In testimony that I claim the foregoing as 60 

